Mutations. Mutations: change in the genetic material …. Now and again cells make mistakes in copying DNA. 2 types of Mutations. Gene mutations Chromosomal mutations. Gene Mutations. Occur on a single gene TAC GCA TGG AAT Code is read in 3 base codons Thefatcatandratran- say?. - PowerPoint PPT Presentation
Text of Mutations
MutationsMutations: change in the genetic material . Now and
again cells make mistakes in copying DNA
2 types of Mutations Gene mutations Chromosomal mutations
Gene Mutations
Occur on a single gene TAC GCA TGG AAT Code is read in 3 base
codonsThefatcatandratran- say?
3 types of gene mutationsPoint Mutations occur at 1 spotTAC GCA
TGG AAT original Substitution?Insertion?Deletion ?
TAC GCA TGG AAT originalSubstitution TAC GGA TGG AAT
InsertionTAC GGC ATG GAA T Deletion TAC GAT GGA AT
Which are the 2 worst kinds of gene mutations? Why?
THE FAT CAT RAN original Substitution THH FAT CAT RAN
InsertionTHE FAA TCA TRA N Deletion HEF ATC ATR AN
Which are the 2 worst kinds of gene mutations? Why?
Changes message which changes the amino acid that is made- wrong
protein made
Chromosomal Mutations Changes in the Number of chromosomesDowns
SyndromeOr structure of
chromosomeDeletionDuplicationInversionTranslocation
Deletion- 1 section is deletedDuplication- 1 section is
doubledInversion- 1 section is reversedTranslocation -part of one
chromosome breaks off and attaches to another.
Mutations are good, bad or neutralNeutralBad: cause dramatic
changes in protein structure body cannot function properlyGood..
Can create variability in species, can be beneficial, if
environmentEx- AIDS resistant genePolyploidy (extra chromosomes)
Banana and citrus fruits are larger and stronger
